A world in which every nation has become a state, that is, a world in which cultural and political units coincide, would be a very different world from the one we know. There are now close to 200 political units recognized as states in the international system. Nations, understood as cultural units, are not as easily identified. Taking only language as a defining criterion, one could count some 6,000 linguistically defined groups. Many of these groups number so few speakers and are so close to extinction that their future can be discounted. If one turns to other cultural markers, however, from religion (or church) and ethnicity, in the sense of common origins, to “a shared style of expression,” the number of cultural groups may well be almost unlimited. Many such groups would call themselves “nations” as a dignified form of self-designation.